Ignition device.



G. B. REISBAGH.

IGNITION DEVICE.

APPLICATION FILED JULY z5, 1910.

1,096,459. Patented May 12, 1914.

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UNTED STATES OFFKQE.

GUSTAVE B. REISBACH. F MILWAUKEE. vVISCONSIN. .ASSIGNOR T0 THE CUTLER- HAMMER MFG. CO., 0F MILWAUKEE, WISCONSIN. A CORPORATION OF XVISCONSIN.

IGNITION DEVICE.

Aatenled May l2, i914.

Application 'filed July 25, 19N). Serial No. 573.649.

lie it known that l', (instravn B. linslnvcn, a citizen of tht` United States, residing` at hililwaukee, in the county of Milwaukee and State of Wisconfsin` have invented new and useful Iinprovements in Ignition Devices. of which the followingl is a full, clear, concise, and exact description. reference being had to the accompanying drawing. forming a part of this specification.

My invention relates lo improvements in ignition devices for explosive engines.

It is one of the objects of my invention to provide a simple and eltieient device for ignition purposes arranged to be operated b v electrolmignets or solenoids.

My invention also has various other obljects and advantages which will be hei-chr` after clearly and fully set forth.

For the purpose of fully disclosing the nature and characteristic features of my in vention, l shall describe the device illustrated in the acwmnpanying drawing which embodies my invention in its preferred form. Of course, my invention is not limited to the specific structure illustrated, but is susceptible of modifications.

In the aecomlmnying drawing, Figure l is a longitmlinally sectional view through the device, Fig. .2 is a front elevation of Fig. l. Fig. 2) is a rear end View of liig. 1 and Fig. 4 is a diagrannnatic view showing one form of circuit connection for the device.

The several parts of the device are car ried by a suitable frame having a head l adapted to be secured by bolts 2, or other suitable means, to the cylinder head of a suitable explosive engine. Projecting from the head 'l are a pair of substantially parallel members 4. onlv one of the same beine' f .i F?

shown in Fig. l. At their extremities the members 4 carry a circular member 5. The

several parts of the frame may be formed integrally, and in practice said frame is preferably formed of east iron. The frame carries a tubular member or sleeve 6 arranged between the members 4land projecting into the emlportions of said frame. F or the purpose hereinafter set forth I desire to have the sleeve electrically insulated from the frame. therefore, prefer to provide within the end portions of the frame insulating 'bushings 7 and S through which the sleeve passes and which eili'ectually maintain the sleeve out of contact with the frame.

The insulating bushings may bc formed of any suitable material and may convcnientlv be formed of mica washers. 'lhe sleeve (3 is provided with a head 0 adapted to bear against the end of the insulating bushing t and is provided al its opposite end with a screwsthreanled portion l() carrying a nut l1 arranged to bear against the end of the insulatiug bushing 7 'lhe insulating bushings 7 and S are arranged to bear against annular slmulders provided in the frame and, hence, when the nut ll is turned against bushing 7, said bushings and said sleeve will be firmly secured in place in said frame. 'lhe sleeve t3 forms a bearing for a shaft or spindle ll extending therethrough and adapted to :freely turn therein. Al` its rear end the shaft or spindle .l 1lcarries the movable element of the lsparking device. As illustrated, the member lo is substantially S shaped and provided with suitable con tact l0 arranged to coiilierate with stationary contacts 1(3l carried by lugs 1S which may be formed integrally with the portion of the frame. The member 1f being rig idly secured to the spindle lflmay be moved into and out of engagement with the stationary contact points to produce the desired sparking by merely oscillating said spindle within the sleeve 'the means` which i have ln'ovided for oscillating the spindle l-i comprise solenoids 1T and It. 'l`he vwo solenoids are suitably mounted on the head ,l of the frame on opposite sides of the spindle ll-. 'l`he two sclenoids are o'l` the same constructimi. but one ol the same is inverted with relation to thtI other, The detailsI oll construction of the solenoid l? are clearly illustrated in ilig. l. The solenoid li' is nmunted in a three sided magnet frame liti. said magnet frame being suitably secured lo the head, l oil the supporting frame. At its lower end the solenoid is provided with a stationary plug JQ and with a movable plunger 225, both being illustrated in dotted lines. The plunger is preferably provided with a conical end adapted to lit into a col-respondngly shaped cavity in the end of the plug. The

i plunger carries a rod fi arranged to pass through and freely slide within the stationary plug. The parallel members of the magnet frame are provided at their extremities with apertures` and 26 within which is mounted a rod QT arranged to slide longitudinally. The lower end of the rod is connected to the lower end of the rod 2d by a member 28 provided at opposite ends with recessed portions adapted to receive the ends of said rods`r pins 30 being provided to lock said member 28 to said rods. The upper end of the rod 27 is connected in a similar manner by a member 81 to the end of the plunger 23 of the solenoid 17. Wlith this arrangement, the plunger of the solenoid and the rod 27 move together as an integral structure, the magnet frame forming guides for the rod 27 and likewise for the plunger of the solenoid. For biasing the plunger of the solenoid in a direction away from the stationary plug, l have provided a conical spring 32 interposed between the magnet frame and the member 31 fixed to the plunger.

The structure of the solenoid 8 and the parts associated therewith are precisely like those above described land, hence, will. be given the same reference characters without further description. The soleno-id 18, however, is inverted with relation to the solenoid 17, and hence, upon energization of said solenoids they would tend to draw their plungers in opposite directions.

The connections between the solenoids and the spindle let are as follows: Upon the outer end of the spindle 14tis a cross member 33 provided at opposite ends with cylindrical Vlugs Set. rlhe member 38 is preferably split to fit onto the plunger, or formed in two sections and provided with bolts or screws 35 for clamping` the same to said spindle to move therewith. An insulating bushing 38 is preferably interposed between the member 83 and said spindle to insulate the saine from one another. As illustrated, this bushing is formed in two longitudinal sections arranged to form a substantially cylindrical sleeve having a flange at the end thereof. rlhe bushing, being clamped between the member 83 and the spindle, will be firmly held in place. Mounted on the rods 27, operated. by the solenoids 17 and 18 are collars 36 retained in place on said rods by pins 37. rlhe collars 85 are provided with bifurcated portions 88 arranged to ceive the extremities of the member 33 on the spindle 14E. lith this arrangement, when the rods 27 are moved in opposite directions by the solenoids 17 and 18 they will cooperate to move the member thereby revolving` the spindle 141: and rocking` the movable sparking member. The collars 86 are so adjusted on the rods 27 that when said rods are moved under the influence of the springs 32 they will cause movement of the member 38 in a direction to throw the movable sparking element into engagement with the stationary contacts thereof.

For making the desired circuit connections, 1 have provided a pair of binding posts 38 and 39 on each of the magnet frames and interposed between the nut 11 on the sleeve t5 and the insulating bushing 7 a conducting strip 40 carrying a binding post L11. The binding posts 88 and 39 are suitably insulated from the magnet frame while the conducting strip et() provides an electrical connection from the binding post 4:1 to the sleeve 6 and thence to the shaft or spindle 14. These binding posts permit of the connections illustrated in Fig. t, which 1 shall now describe.

The solenoids 17 and 18 are connected in parallel between the brush 42 of a suitable commutator or timer 4:3 and the conducting strip 40 which 1 have diagrammatically illustrated as bearing directly upon the spindle 14. The other contact brush del of the commutator or timer is connected toene terminal of a storage battery 45, the other terminal of the storage battery being grounded. The stationary contacts of' the sparking plug are connected to a ground wire d6. rThe commutator or timer is provided -for energizing the solenoids at the desired periods, the same being adapted to be operatively connected to any of the moving parts of the engine, or to the driven mechanism. The commutator or timer may, of course, be of any preferred construction. As diagrammatically illustrated, Yit .is provided with a contact 47 arranged to be continuously engaged by the brush 114 and with an insulating portion 48 carrying a small contact segment 4t2) adapted to engage with the contact brush 42. lith the Vcircuit connections illustrated, it will be seen that the circuit of the solenoids is completedthrough the sparking contacts. It is, therefore, obvious that the solenoid windings will perform the same functions as would an induction coil connected in circuit with the sparking contacts to give the required spark.

The operation of the device is as follows: When the contact i9 of the commutator or timer is brought into engagement with contact brush d2, circuit is closed from the battery l5 through the solenoids in parallel to the spindle 111, thence through the contacts of the sparking device to the ground. rI "liereupon the solenoids respond oscillating the spindle 14 and drawing the sparking element 15 away 'from the stationary contacts. This results in drawing an arc or arcs between the movable sparking element and one or both of the stationary contacts to ignite the charge in the engine. 0f course, as soon as the arc drawn between the contacts of the sparking device is broken, circuit through the solenoids is interrupted, whereupon, the plungers of the solenoids move under t-he influence of the springs 32 to return the contacts of the sparking device into engagement. In the meantime the contact 49 of the commutator or timer has been moved out ot engagement with` the contact brush 4:2 and the solenoids will remain denergized until the engine has completed a predetermined cycle to again bring the contacts ot' the commutator or timer into engagement. if he same operation of the sparking device is then repeated. Iit' perlect mechanical adjustment could be obtained, arcs would be drawn between the movable member ot the sparking plug and both ot the staiionaiy contacts. In practice, however, it is very ditlicult lo obtain such mechanical perfection, and furthermore it is unnecessary to do so. .Ilencc, in actual operation, probably, only one spark would be termed in the majority of instances. However, by providing two contact points the wear on the contact surt'aces would be equally divided between said points of contact, thereby maintaining' the life of the sparking plug Ytor a milch longer time than if only one contact point were provided.

Having thus described my invention what I claim as new and desire to secure by Letters Pa t/ent, is:

l. In con'ibination, a supporting member, a pair o't' magnet trames mounted thereon, solenoids mounted in said magnet :trames and having movable plnngers adapted to be magnetitailly attracted in relatively opposite directions, a spindle revolubly supported by said suppmfting member between said sclenoids, a contact tixed to said spindle and operative connections between said spindle and the plnngers ot said solenoids for causing said solenoids when energized to cooperate in revolving said spindle to oscillate said contact in one direction.

Q. In combination, a supporting meniber. a pair ot magnet trames mounted thereon, solenoids mounted in said magnet frames and ha ving movable plungers adapted to be magnetically attracted in relatively opposite directions, a spindle revolubly support ed by said supporting member between said solenoids, a contact tixed to said spindle, operative connections between said spindle and the plungers of said solenoids tor causing said solenoids when energized to co operate to revolve said spindle to oscillate said contact in one directimi and means biasing the plungers o't said solenoids in an opposite direction to that. in which they are magnetically moved to cause the same to oscillate said contact in an opposite direction when said solenoids are denergized.

3. In combination, a supporting member, a pair of magnet trames mounted thereon, solenoids mounted in saidv frames and having movable plungers adapted to be magn netcally attracted in relatively opposite directions, a spindle revolubly supported by said supporting member between said solenoids, a contact Fixed to said spindle and operative connections between the plungers ol. said solenoids and said spindle, including rods movable with said plungers and working` in guides in the magnet trames, tor causing said solenoids to cooperate to oscillate said spindle and said contact in one direction.

`t. In combination, a supporting member, a pair ot magnet trames mounted side by side thereon, solenoids mounted in said 'trames and having movable plungers adapted to be magnetically attracted in relatively op posile directions, a spindle revolubly supported by said supporting member between said solenoids, a contact tixcd to said spindle. operativo connections between the plungers ot' said solenoids and said spindle, including .rods movable with said plunq'ei's and working in guides in the magnet rame for causing said solenoids to cooperate to oscillate said spindle and said contact in one direction. and coiled slirmgs surrounding` the plungers of said solenoids and ar anged t0 bias said plungers in an oppositie direction to that in which they are moved by said solenoids.

In combination. a supporting member, a pair o't' solenoids mounted side by side thereon and having movable plungcrs adapted to be magnetically attracted in relatively opposite directions, a pair of rods external to said solenoids, each being connected to the plunger ot' one ot' said solenoids to move therewith, stationary guides for said rods, a spindle revolubly supported by said supporting member between said solenoids, a contact fixed to said spindle and operative connections between said spindle and said rods for causing said spindle and said contact to be oscillated in one direction when said solenoids are energized.

o. ln combination` a supporting member, a pair ot' solenoids mounted side by side. thereon and each having a movable plunger.l said plungers boing magnetically attracted in opposite directions, a pair of rods external to said solenoids` each being connected to the plunger ot one ot said solenoidsl to move therewith, stationary guides t'or said rods, a spindle revolubly supported by said suliporting member between said solenoids, ay contact fixed to said spindle, operative connections between said spindle and said rods t'or causing' said spindle and said contact to be rot-ated in one direction when said solenoids are energized and means tending to restore said plungers to normal position to rotate said spindle and said contact in an opposite direction when said solenoids are deenergized.

7. 'ln combination, a supporting member, a pair ot' solenoids mounted side by side thereon and having movable plungers adapted to be magnetically attracted in opposite directions, cach o't.l said plungers having portions projecting t'rom opposite ends of its operating winding, a rod external to each of said solenoids and rigidly connected to its plunger at opposite ends thereof, stationary guides for said rods, a spindle revolubly supported by said supporting member between said solenoids, a contact Xed to said spindle, a. cross member securedto said spindle and devices carried by said rods for engaging th-e opposite ends of said cross member to cause said solenoids When energized to cooperate in oscillating said spindle and said contact in one direction.

8. In combination, a supporting member, a pair of solenoids mounted side by side thereon and having movable plungers adapted to be magnetically attracted in opposite directions, each of said plungers having portions projecting from opposite ends of its operating Winding, a rod external to each of said. solenoids and rigidly connected to its plunger' at opposite ends thereof, stationary guides for said rods, a spindle revolubly supported by said supporting member between said solenoids, a contact fixed to said spindle, a cross member secured to said spindle, devices carried by said rods for engaging the opposite ends of said cross member to cause said solenoids When energized to cooperate in oscillating said spindle and said contact in one direction, and means biasing the plungers of said solenoids to cause the same to oscillate said spindle and said contact in an opposite direction when said solenoids are denergized.

9. ln combination, a supporting member, a pair of magnet frames mounted side by side thereon, a solenoid mounted in each oit' said magnet frames, said solenoids having movable plungers adapted to be magnetically attracted in opposite directions, each of said plungers having port-ions projecting from opposite ends of its operating Winding, a longitudinally movable rod slidably 1nounted in each of said magnet frames and disposed substantially parallel to the plunger y of the solenoid mounted therein, each of said plnngers being rigidly connected at opposite ends to'one of said rods to cause the same to move therewith, a spindle revolubly snpported by said supporting member between said solenoids, a, contact fixed to said spindle, a cross member fixed to said spindle and devices carried by said rods for engaging the extremities oi' said cross members to cause said solenoids when energized to oscillate said spindle and said Contact in one direction. f

l0. ln an ignition device forexplosive engines, in combination, a supporting frame, a spindle revolubly mounted therein, an oscillating contact fixed to said spindle, a pair ot magnet frames mounted on the head of said supporting frame and arranged in substantially parallel relation on opposite sides o1Y said spindle, a solenoid Winding mounted in each ot said magnet frames, a stationary core and a movable plunger within each of said windings, theplnnger of each Winding haring an extension passing through its corresponding stationary core a. slidingrod arranged in parallel relation With each of said plungers and connected to move therewith, cach of said rods working in guides on one of the magnet t ames, a coil spring surrounding the plunger of each solenoid and interposed between the magnet frame and a part iiied` to the plunger, Va cross member liXed to said spindle and devices fixed to said rodsl 'for engaging the opposite ends of said cross member, one of said solenoids being inverted with relation to the other to cause said solenoids when energized to co-jointly oscil late said contact. member in one direction said springs biasing the movable parts ot' said solenoids in a direction to return said contact member to normal position upon deenergization of said solenoids.

ln Witness whereof, l have hereunto subscribed my name in the presence. of two \vit nesses.

GUSTAVE B. REISBAC-l-l. lllitnesses FRANK H. Hummm), GEORGE l-lAYNns.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. 1C. 

